| 摘要 |
PROBLEM TO BE SOLVED: To facilitate discrimination of the kind of machine glazed paper of a multiple color developing thermosensitive printing medium. SOLUTION: Long lengths of two-color developing thermosensitive printing medium 1 having characteristics of developing two colors, a black color to be developed by the impression of first printing energy thereon and a second color to be developed by the impression of second printing energy, is rolled up from one end part side in the direction of the length thereof. In this case, markings 12 having the second color developed by the impression of the second printing energy are put to positions which can be checked visually from outside. According to this constitution, a user can check visually, from outside, the colors of machine glazed paper to be developed. |
